<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>类声明</title>
</head>
<body>
  <script>
    //手机
    function Phone(brand,price){
      this.brand = brand;
      this.price = price;
    }

    //添加方法
    Phone.prototype.call = function(){
      console.log("我可以打电话");
    }

    //实例化对象
    let Huawei = new Phone('华为',6999);
    Huawei.call();
    console.log(Huawei);d

    //class
    class shouji{
      //构造方法  名字不能修改
      constructor(brand,price){
        this.brand = brand;
        this.price = price;
      }

      //方法必须使用该语法，不能使用 ES5 的对象完整形式
      call(){
        console.log('我可以上网');
      }
    }

    let xiaomi = new shouji("xiaomi",5999);

    console.log(xiaomi);
  </script>
</body>
</html>